Halep is 22 and from Romania. She spotted Lisicki a 4-1 lead and won the next 11 games.

"I was a little bit lost on the court. But in the beginning only," Halep said.

She is among the more improved players on the tour. Last year at this time, she was ranked No. 32. Now she is No. 3 and if she beats Bouchard, she will be No. 2. Serena Williams will retain her No. 1 ranking no matter what the women's outcome is here.

Bouchard is 20. She is a former Wimbledon junior champion from Canada. She has improved greatly this year too. At Wimbledon last year, she was No. 66. Now, after her quarterfinal win Wednesday, she is No. 8.